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CN | EN

Cryogenic Gate Valve

Technical Parameters

Product model: DZ41Y/W
Nominal pressure: PN1.6~2.5Mpa
Nominal diameter: DN15~800mm
Main materials: LCB, LF1, LF3, LC3, CF8, F304, etc
Applicable temperature: -45 ℃~196 ℃
Design and manufacturing: JB/T 7749-95
Structure length: GB/T 12221-1989
Flange connection: JB/T 79-1994
Inspection and testing: JB/T 9092-1999

Product Details

Product Overview

Body & Bonnet: integrated stainless steel forging or casting, with excellent strength and anti-cryogenic property.

Stem: forging XM-19 or Inconel 718 material, it was anti-abbrasive and anti-scuffing after nitrating treatment.

Sealing: STL material, with the property of anti-abbrasive, anti-rusty and anti-cryogenic.

Drip Plate: effectively stop the condensate water flow into insulating layer.

Stem Nut: C95200, with better chemical property and smooth turning.

Fastners: all the fastners are fully threaded type under cryogenic temp. it is effectively avoid fastners long deformation and sealing failed.

Back Seat: all back seat are designed near to the packing bottom.

Packing: compound packing sealing construction, effectively reduced the torque of opening and closing.

Uni-directional flow: vent hole in disc, to avoid cavity pressure rising.

Clean: all the cryogenic valves are oil-degreased before assembling.



Main overall connection dimensions

model DN L D D1 D2 b n-Φd H D0
1.6MPa
raised face flange
RF
DZ41（0）Y-16LCB
DZ41（0）Y-16LC1
DZ41（0）Y-16LC2
DZ41（0）Y-16LC3
DZ41（0）Y-16LC4
DZ41（0）Y-16P
DZ41（0）Y-16R
 20 150 105 75 55 14 4-Φ14 320 140
25 160 115 85 65 14 4-Φ14 350 160
32 180 135 100 78 16 4-Φ18 385 180
40 200 145 110 85 16 4-Φ18 420 220
50 250 160 125 100 16 4-Φ18 540 240
65 265 180 145 120 18 4-Φ18 610 240
80 280 195 160 135 20 8-Φ18 690 280
100 300 215 180 155 20 8-Φ18 780 300
125 325 245 210 185 22 8-Φ18 930 320
150 350 280 240 210 24 8-Φ23 980 350
200 400 335 295 265 26 12-Φ23 1180 400
250 450 105 355 320 30 12-Φ25 1390 450
300 500 460 410 375 30 12-Φ25 1620 500
350 550 520 470 435 34 16-Φ25 1810 500
400 600 580 525 485 36 16-Φ30 1970 550
2.5MPa
raised face flange
RF
DZ41（0）Y-25LCB
DZ41（0）Y-25LC1
DZ41（0）Y-25LC2
DZ41（0）Y-25LC3
DZ41（0）Y-25LC4
DZ41（0）Y-25P
DZ41（0）Y-25R
 20 150 105 75 55 16 4-Φ14 320 140
25 160 115 85 65 16 4-Φ14 350 160
32 180 135 100 78 18 4-Φ18 385 180
40 200 145 110 85 18 4-Φ18 420 200
50 250 160 125 100 20 4-Φ18 540 240
65 265 180 145 120 22 8-Φ18 510 240
80 280 195 160 135 22 8-Φ18 690 280
100 300 230 190 160 24 8-Φ23 780 300
125 325 270 220 188 28 8-Φ25 930 300
150 350 300 250 218 30 8-Φ25 980 320
200 400 360 310 278 34 12-Φ25 1180 360
250 450 425 370 332 36 12-Φ30 1390 400
300 500 485 430 390 40 16-Φ30 1620 450
350 550 550 490 448 44 16-Φ34 1810 500
400 600 610 550 505 48 16-Φ34 1990 560

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